This document applies to instruments running software version
3.2.x or later.
Warning
The servicing instructions are for use by qualified personnel
only. To avoid personal injury, do not perform any servicing
unless you are qualified to do so. Refer to all safety summaries
prior to performing service.
Tektronix products are covered by U.S. and foreign patents, issued and pending. Information in this publication
supersedes that in all previously published material. Specifications and price change privileges reserved.
TEKTRONIX a nd TEK are registered trademarks of Tektronix, Inc.
Contacting Tektronix
Tektronix, Inc.
14150 SW Karl Braun Drive
P.O . Bo x 50 0
Beaverto
USA
For product information, sales, service, and technical support:
n, OR 97077
In North America, call 1-800-833-9200.
World wide , vi s it www.tektronix.com to find contacts in your area.
Warranty
Tektronix warrants that this product will be free from defects in materials and workmanship for a period of one (1)
year from the date of shipment. If any such product proves defective during this warranty period, Tektronix, at its
option, either will repair the defective product without charge for parts and labor, or will provide a replacement
in exchange for the defective product. Parts, modules and replacement products used by Tektronix for warranty
work may be n
the property of Tektronix.
ew or reconditioned to like new performance. All replaced parts, modules and products b ecome
In order to o
the warranty period and make suitable arrangements for the performance of service. Customer shall be responsible
for packaging and shipping the defective product to the service center designated by Tektronix, with shipping
charges prepaid. Tektronix shall pay for the return of the product to Customer if the shipment is to a location within
the country in which the Tektronix service center is located. Customer shall be responsible for paying all shipping
charges, duties, taxes, and any other charges for products returned to any other locations.
This warranty shall not apply to any defect, failure or damage caused by improper use or improper or inadequate
maintenance and care. Tektronix shall not be obligated to furnish service under this warranty a) to repair damage
result
b) to repair damage resulting from improper use or connection to incompatible equipment; c) to repair any damage
or malfunction caused by the use of non-Tektronix supplies; or d) to service a product that has been modified or
integrated with other products when the effect of such modification or integration increases the time or difficulty
of servicing the product.
THIS WARRANTY IS GIVEN BY TEKTRONIX WITH RESPECT TO THE PRODUCT IN LIEU OF ANY
OTHER WARRANTIES, EXPRESS OR IMPLIED. TEKTRONIX AND ITS VENDORS DISCLAIM ANY
IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
TRONIX' RESPONSIBILITY TO REPAIR OR REPLACE DEFECTIVE PRODUCTS IS THE SOLE
TEK
AND EXCLUSIVE REMEDY PROVIDED TO THE CUSTOMER FOR BREACH OF THIS WARRANTY.
TEKTRONIX AND ITS VENDORS WILL NOT BE LIABLE FOR ANY INDIRECT, SPECIAL, INCIDENTAL,
OR CONSEQUENTIAL DAMAGES IRRESPECTIVE OF WHETHER TEKTRONIX OR THE VENDOR HAS
ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES.
[W2 – 15AUG04]
btain service under this warranty, Customer must notify Tektronix of the defect before the expiration of
ing from attempts by personnel other than Tektronix representatives to install, repair or service the product;
Table of Contents
General safety summary ........................ ................................ ................................ ...v
Review the fo
this product or any products connected to it.
To avoid pot
Only qualified personnel should perform service procedures.
While using this product, you may need to access other parts of a larger system.
Read the safety sections of the other component manuals for warnings and
cautions r
Use proper power cord. Use only the power cord specified for this product and
certified for the country of use.
Ground the product. This product is grounded through the grounding conductor
of the power cord. To avoid electric shock, the grounding conductor must be
connected to earth ground. Before making connections to the input or output
terminals o f the product, ensure that the product is properly grounded.
Observe all terminal ratings. To avoid fire or shock hazard, observe all ratings
and markings on the product. Consult the product manual for further ratings
information before making connections to the product.
llowing safety precautions to avoid injury and prevent damage to
ential hazards, u se this product only as specified.
elated to operating the system.
The inputs are not rated for connection to mains or Category II, III, or IV circuits.
Power disconnect. The power cord disconnects the product from the power source.
Do not block the power cord; it must remain accessible to the user at all times.
Do not operate without covers. Do not operate this product with covers or panels
removed.
Do not operate with suspected failures. If you suspect that there is damage to this
product, have it inspected by qualified service personnel.
Avoid exposed circuitry. Do not touch exposed connections and components when
power is present.
Replace batteries properly. Replace batteries only with the specified type and
rating.
Use proper fuse. Use only the fuse type and rating specified for this product.
Wear eye protection. Wear eye protection if exposure to high-intensity rays or
laser radiation exists.
SPECMON3 and SPECMON6 Technical Referencev
General safety summary
Termsinthismanual
Symbols and terms on the
product
Do not operate i
Do not operate in an explosive atmosphere.
Keep product surfaces clean and dry.
Provide prop
on installing the product so it h as proper ventilation.
These terms may appear in this manual:
WARNING.
in injury or loss of life.
CAUTION
damage to this product or other property.
These t
erms may appear on the product:
DANGER indicates an injury hazard immediately accessible as you read
the ma
n wet/damp conditions.
er ventilation. Refer to the manual's installation instructions for details
Warning statements identify conditions or practices that could result
. Caution statements identify conditions or practices that could result in
rking.
WARNING indicates an injury hazard not immediately accessible as you
the marking.
read
CAUTION indicates a hazard to property including the product.
The following symbol(s) may appear on the product:
viSPECMON3 and SPECMON6 Technical Reference
Preface
Related Manuals
This document contains the Specifications and the Performance Verification for
the SPECMON3 and SPECMON6 Real Time Spectrum Analyzers. It contains
procedures s
properly, and meets the performance characteristics as warranted.
The following documents relate to the operation or service of the analyzer:
uitable for determining that the analyzer functions, is adjusted
The SPECMSpectrum Analyzer Quick Start User Manual describes how to use your
analyzer.
The SPECMON3 Real-Time Spectrum Analyzers and SPECMON6 Real-TimeSpectrum Analyzers Application Examples Manual, provides tutorial
examples of how to take measurements in different application areas.
The SPECMON3 Real-Time Spectrum Analyzers and SPECMON6 Real-TimeSpectrum Analyzers Programmers Manual describes how to use a computer
to control the analyzer through the GPIB interface.
The SPECMON3 and SPECMON6 Service Manual provides information for
maintaining and servicing your analyzer to the module level.
ON3 Real-Time Spectrum Analyzes and SPECMON6 Real-Time
SPECMON3 and SPECMON6 Technical Referencevii
Preface
viiiSPECMON3 and SPECMON6 Technical Reference
Specifications
This section contains specifications for the SPECMON Series Real Time Signal
Analyzers. All specifications are warranted unless noted as a typical specification.
Table 1: Spe
CatagoryDescription
Specified CharacteristicsThese are the warranted characteristics of the device,
Typical
Typical-95
Typical-mean
cification categories
and are tested either on each unit in manufacturing
or by typemeasurement tolerance and temperature limits.
This is performance that will be met by 80% of
instruments with 80% confidence, for ambient
temperat
immediately after performing an alignment. Values
include the effects of the uncertainties of external
calibra
the published calibration interval. These values are
determined from qualification testing and are not
warrant
This is
instruments with 95% confidence, for ambient
temperatures in the range of 18 to 28°C, immediately
after
effects of the uncertainties of external calibration
references and aging over the course of the
recom
determined from qualification testing and are not
warranted or tested in the performance verification.
This represents the mean of performance measured
onas
laboratory temperature, immediately after performing
an alignment. Values do not include the effects
of u
and aging over the course of the recommended
calibration interval. These values are determined from
qua
the performance verification.
testing. Specified characteristics include
ures in the range of 18 °C to 28 °C,
tion references and aging over the c ourse of
ed or tested in the performance verification.
performance that will be met by 95% of
performing an alignment. Values include the
mended calibration interval. These values are
ample of units. Sample data is collected at
ncertainties of external calibration references
lification testing and are not warranted or tested in
Specifications that are marked with thesymbol are checked in the Performance
Ver i fication section.
SPECMON3 and SPECMON6 Technical Reference1
Specifications
Performance C
onditions
The performance limits in these specifications are valid with these conditions:
The spectrum analyzer must have been calibrated and adjusted at an ambient
temperature between +18 °C and +28 °C.
The spectrum analyzer must be in an environment with temperature, altitude,
humidity, and vibration within the operating limits described in these
specifications.
The spectrum analyzer must have had a warm-up period of at least 20 minutes
after starting the analyzer application.
Electrical Specifications
Table 2: Frequency
CharacteristicDescription
Measurement frequency
Frequency
range, nominal
Frequency
Marker
Residual FM, typical
Span Accuracy±0.3% of span (Auto m ode)
SPECMON3 (RF band)9 kHz to 3 GHz
SPECMON6 (RF band)9 kHz to 6.2 GHz
Readout Accuracy
Readout Resolution
±(RE × MF + 0.001 × Span + 2 ) Hz
RE: Reference Frequency Error
MF: Marker Frequency [Hz]
Reference level dependent
As small as 0.0001 µV
<2 Hz
Freq vs Time mode, Autoscale (95% confidence)
ts peak (RF Input, RF ATT ≥30 dB (<10 µs Pulse Width, 1% Duty Cycle repetitive
es)
Table 7: Input attenuator
CharacteristicDescription
RF Attenuator (DC to 6.2 GHz)0 dB to 55 dB (5 dB step), nominal
Table 8: Analog sweep
CharacteristicDescriptionReference info
Sweep Time, typical1500 MHz/second tuning rate (standard)
500 MHz/second tuning rate (Option 40)
2
6000 MHz/second tuning rate (Option 110)
RBW set to Auto; RF & IF
ptimization set to Minimize
O
Sweep Time
SPECMON3 and SPECMON6 Technical Reference5
Specifications
Table 9: Amplit
CharacteristicDescription
Reference level setting range, nominal–170 dBm to +40 dBm, 0.1 dB step, (Standard RF
Frequency response (18 °C to 28 °C)
ncy response (5 °C to 40 °C), typical
Freque
Input attenuator switching uncertainty±0.3 dB
ude and RF flatness (excluding mismatch error)
10 dB RF
attenuator
setting, Preamp
OFF
10 dB RF
attenuator
setting, Preamp
ON (Option 50)
settings, Preamp
pical
OFF, ty
All RF attenuator
ngs, Preamp
setti
OFF
enuator =
Att
10 dB, Preamp
ON (Option 50)
10 MHz to 32 MHz, LF Band±0.2 dB
10 MHz to 3 GHz
3GHzto6.2GHz
(SPECMON6 only)
10 MHz to 32 MHz, LF Band±0.5 dB
10 MHz to 3 GHz
3GHzto6.2GHz
(SPECMON6 only)
9kHzto10MHz±0.7dBAll RF attenuator
1 Hz to 10 MHz (LF Band)
32 MHz (LF Band)
1Hzto
o3GHz
9kHzt
to 6.2 GHz
3GHz
(SPECMON6 only)
32 MHz (LF Band)
9 kHz to 3 GHz
3GHzto6.2GHz
(SPECMON6 only)
1
input)
±0.35 dB
±0.5 dB
±0.5 dB
±0.7 dB
±0.7 dB
±0.8 dB
±0.5 dB
±1.0 dB
8dB
±0.
8dB
±0.
.3 dB
±1
6SPECMON3 and SPECMON6 Technical Reference
Specifications
Table 9: Amplitude and RF flatness (excluding mismatch error)1(cont.)
CharacteristicDescription
Absolute amp
Absolute am
litude accuracy at calibration point (RF)
plitude accuracy at all center frequencies (18 °C to 28 °C)
10 MHz to 3 G
3GHzto6.2
Hz
GHz (SPECMON6 only)
2
Level Linearity
1
All amplitude and frequency response measurements made with Preamp OFF, except where noted, and Flattop window filter used to maximize CW amplitude
measurement accuracy.
2
Reference Level ≤ –15 dBm, –15 dBm to –50 dBm. 10 Hz ≤ RBW ≤ 1 MHz, after alignment performed.
±0.31 dB
, 95% confidence
±0.3 dB
±0.5 dB
±0.1 dB (0
dB to –70 dB Below Reference Level)
Table 10
: Noise and distortion
1
CharacteristicDescription
1 dB Compression Input2,
3
2GHz
+7 dBm
RF Attenuation = 0 dB
1 dB Compression Input,
2,3
al
typic
300 MHz to 6.2 GHz
+7 dBm
RF Attenuation = 0 dB
m
1 dB Compression Input,
Preamp ON, typical
tenuation = 0 dB
RF At
Order IM Intercept (TOI)
3rd
Order IM Intercept (TOI),
3rd
2,3
typical
300 MHz to 6.2 GHz
.130 GHz
At 2
.130 GHz
At 2
10 kHz to 32 MHz, LF Band+12.5 dBm
-10 dB
+16 dBm
+17 dBm
9 kHz to 80 MHz+11 dBm
MHz to 300 MHz
80
00MHzto3GHz
3
GHz to 6.2 GHz
3
3 dBm
+1
+17 dBm
+17 dBm
(SPECMON6 only)
3rd Order IM Intercept (TOI),
Preamp ON, typical
At 2.130 GHz
10 kHz to 32 MHz, LF Band–10 dBm
–5 dBm
9 kHz to 80 MHz–10 dBm
3GHzto6.2GHz
–5 dBm
(SPECMON6 only)
SPECMON3 and SPECMON6 Technical Reference7
Specifications
Table 10: Noise and distortion1(cont.)
CharacteristicDescription
3rd Order Intermodulation Distortion
3rd Order Intermodulation Distortion, Preamp On, typical
2ndHarmonic Distortion, typical. Preamp OFF
2ndHarmonic Distortion Preamp ON, typical
2ndHarmonic Distortion Intercept (SHI), typical
2ndHarmonic Distortion Intercept (SHI) Preamp ON, typical
4
Specified
At 2.130 GHz
–82 dBc
Each signal level -25 dBm at the RF input. 1 MHz tone separation. Attenuator =
0, Ref Level = –20 dBm.
Typical
10 kHz to
< –75 dBc
32 MHz (LF
Band)
9kHzto
< –72 dBc
80 MHz
80 MHz to
< –76 dBc
300 MHz
300 MHz to
< –84 dBc
3GHz
3GHzto
< –84 dBc
6.2 GHz
(SPECMON6 only)
Each signal level –25 dBm at the RF input. 1 MHz tone separation. Attenuator = 0, Ref Level =
–20 dBm.
5
1 MHz to 80 MHz< –70 dBc
80 MHz to 300 MHz< –70 dBc
300 MHz to 3 GHz
3 GHz to 6.2 GHz (SPECMON6
< –80 dBc
< –80 dBc
only)
10 MHz to 500 MHz< –80 dBc
500 MHz to 1 GHz
1GHzto3.1GHz
10 MHz to 13.25 GHz
< –80 dBc
< –83 dBc
< –55 dBc
10 MHz to 500 MHz+45 dBm
500 MHz to 1 GHz
1GHzto3.1GHz
3.1 GHz to 7.5 GHz
7.5 GHz to 13.25 GHz
10 MHz to 13.25 GHz
+34 dBm
+34 dBm
+45 dBm
+45 dBm
+10 dBm
8SPECMON3 and SPECMON6 Technical Reference
Specifications
Table 10: Noise and distortion1(cont.)
CharacteristicDescription
Displayed Average Noise Level (DANL) Normalized to 1 Hz RBW with log-average detector
Preamp OFF (Minimum noise
Specificati
on
mode)
1 Hz to 100 Hz,
––
LF Band
100 Hz to
–124 dBm/Hz–130 dBm/Hz
4 kHz, LF Band
4kHzto
–141 dBm/Hz–143 dBm/Hz
10 kHz, LF
Band
10 kHz to
–150 dBm/Hz–153 dBm/Hz
32 MHz, LF
Band
9kHzto1MHz
1MHzto
–108 dBm/Hz–111 dBm/Hz
–136 dBm/Hz–139 dBm/Hz
10 MHz
10 MHz to
–154 dBm/Hz–157 dBm/Hz
2GHz
2 GHz to 3 GHz–153 dBm /Hz–156 dBm /Hz
3GHzto4GHz
–151 dBm /Hz–154 dBm /Hz
(SPECMON6
only)
4GHzto
–149 dBm /Hz–152 dBm /Hz
6.2 GHz
(SPECMON6
only)
Preamp ON (option 50 only)
1MHzto
Specification
–158 dBm/Hz–160 dBm/Hz
32 MHz, LF
and
B
1MHzto
0MHz
1
10 MHz to
158 dBm/Hz
–
–164 dBm/Hz–167 dBm/Hz
2GHz
2 GHz to 3 GHz–163 dBm/Hz–165 dBm/Hz
3GHzto
–161 dBm/Hz–164 dBm/Hz
6.2 GHz
(SPECMON6
only)
1
All noise and distortion measurements are made with Preamp OFF except where noted.
The 1 dB compression point for the RF conversion system can not be measured from outside the instrument, nor can signals get near it in operation. This is
because the A/D converter will clip before the 1 dB compression is reached
Typical
–129 dBm/Hz
Typical
160 dBm/Hz
–
SPECMON3 and SPECMON6 Technical Reference9
Specifications
4
Each signal lev
5
Each signal level –45 dBm at the RF input. 1 MHz tone separation. Attenuator = 0, Ref Level = –40 dBm.
el –25 dBm at the RF input. 1 MHz tone separation. Attenuator = 0, Ref Level = –20 dBm.
The BW value used in this table is the bandwidth of the channel. RF Attenuator = 10 dB. Use Flattop Window for maximum CW amplitude verification accuracy.
2
After calibration and normalization, CF=200 MHz.
≤110 MHz±0.50 dB±0.40 dB
1
BW ≤ 300 kHz
300 kHz < BW ≤ 10 MHz
10 MHz < BW ≤ 25/40 MHz
40 MHz
BW ≤300 kHz
300 kHz < BW ≤ 10 MHz
Hz < BW ≤ 25/40 MHz
10 M
40 MHz < BW ≤ 110 MHz
2
<BW≤ 110 MHz
2
2
2
2
2
2
2
e flatness
Typical
Descri
±0.1 dB
±0.2 dB
±0.4 d
±0.5 d
°
±0.1
2°
±0.
75°
±0.
.0°
±2
ption
B
B
,RMS
Phase flat
,RMS
Typical
±1.5°
ness
Table 14: Pulse measurements, typical
CharacteristicDescription
Minimum Pulse Width for detection,
110 MHz BW
50 ns150 ns
25/40 MHz BW
typical
Average ON Power
(18°Cto28°C),typical
±0.3 dB + absolute Amplitude Accuracy
For pulse widths ≥100 ns, duty
cycles of 0.5 to 0.001, and S/N
For pulse widths ≥300 ns, and signal levels >70 dB
below Ref Level
ratio = 30 dB
10SPECMON3 and SPECMON6 Technical Reference
Table 14: Pulse measurements, typical (cont.)
CharacteristicDescription
Duty Factor, typical
Pulse Width, typical
System Rise time, typical
Pulse-to-Pulse carrier phase,
12
typical
2 GHz±0.72°±0.35°
2 GHz±0.7°±0.3°
Pulse-to-Pulse carrier phase,
34
typical
2 GHz±0.5°±0.3°
2 GHz±0.5°±0.3°
Pulse-to-Pulse carrier frequency,
56
typical
2GHz
2GHz
Pulse-to-Pulse carrier frequency,
78
typical
2GHz
2GHz
±3% of reading
For pulse widths ≥150 ns, duty
cycles of 0.5 to 0.001, and S/N
ratio ≥ 30 dB
±0.4 dB + absolute Amplitude AccuracyAverage Transmitted Power, typical
For pulse widths ≥100 ns, duty
cycles of 0.5 to 0.001, and S/N
ratio ≥ 30 dB
±0.4 dB + absolute Amplitude AccuracyPeak Pulse Power, typical
For pulse widths ≥100 ns, duty
cycles of 0.5 to 0.001, and S/N
ratio ≥ 30 dB
±3% of reading
For pulse widths ≥150 ns, duty
cycles of 0.5 to 0.001, and signal
levels >50 dB below Ref Level
<12 ns<40 ns
110 MHz BW25 MHz BW
60 MHz BW20 MHz BW
110 MHz BW25 MHz BW
60 MHz BW20 MHz BW
110 MHz BW20 MHz BW
±225 kHz±13kHz
60 MHz BW
±80 kHz
110 MHz BW20 MHz BW
±200 kHz±12 kHz
60 MHz BW
±130 kHz
Specifications
For pulse widths ≥450 ns, duty cycles of 0.5 to 0.001,
and S/N ratio ≥ 30 dB
For pulse widths ≥300 ns, duty cycles of 0.5 to 0.001,
and S/N ratio ≥ 30 dB
For pulse widths ≥300 ns, duty cycles of 0.5 to 0.001,
and S/N ratio ≥ 30 dB
For pulse widths ≥450 ns, duty cycles of 0.5 to 0.001,
and S/N ratio ≥ 30 dB
SPECMON3 and SPECMON6 Technical Reference11
Specifications
Table 14: Pulse measurements, typical (cont.)
CharacteristicDescription
Pulse frequency linearity (Absolute
frequency error RMS), typical
910
2GHz
2GHz
Chirp frequency linearity (Absolute
frequency error RMS), typical
11 12
2GHz
2GHz
1
For 60 MHz / 110 MHz bandwidths, and conditions of:
Pulse ON power ≥–20 dBm
Frequency Estimation = Manual
CW (non-chirped) pulses
Signal peak at Ref Lvl.
Atten = Auto
Pulse width ≥ 200 ns.
PRI ≤300 us.
Duty cycle ≥ 0.0007
t
meas–treference
Phase measurement includes 100 pulses minimum.
Measured pulses to be adjacent.
Measurement time position excludes the beginning and ending of the pulse extending for a time = (10/measurement Bandwidth) as measured from the
50% point of the Tr or Tf.
2
For 20 MHz / 25 MHz bandwidths, and conditions of:
Pulse ON power ≥–20 dBm
Frequency Estimation = Manual
CW (non-chirped) pulses
Signal peak at Ref Lvl.
Atten = Auto
Pulse width ≥ 300 ns.
PRI ≤300 us.
Duty cycle ≥ 0.001
t
meas–treference
Phase measurement includes 100 pulses minimum.
Measured pulses to be adjacent.
Measurement time position excludes the beginning and ending of the pulse extending for a time = (10/measurement Bandwidth) as measured from the
50% point of the Tr or Tf.
3
For 110 MHz / 60 MHz bandwidths, and conditions of:
Linear Chirped pulses
For signal type: Linear chirp, Peak to peak chirp deviation: ≤ (0.8 x Measurement bandwidth)
Frequency Estimation = Manual
Pulse ON power ≥–20 dBm
Signal peak at Ref Lvl.
Atten=0dB
Pulse width ≥ 100 ns.
PRI ≤300 us.
≤ 10 ms
≤ 10 ms
110 MHz BW20 MHz BW
±65 kHz±7 kHz
60 MHz BW25 MHz
±26kHz±10kHz
110 MHz BW25 MHz BW
±50 kHz±6 kHz
60 MHz BW20 MHz BW
±30 kHz±5 kHz
12SPECMON3 and SPECMON6 Technical Reference
Specifications
Duty cycle ≥ 0.0
t
meas–treference
003
≤ 10 ms
Measurement time position excludes the beginning and ending of the pulse extending for a time = (10/measurement Bandwidth) as measured from the
50% point of the Tr or Tf.
4
For 25 MHz / 20 MHz bandwidths, and conditions of:
Linear Chirped pulses
For signal type: Linear chirp, Peak to peak chirp deviation: ≤ (0.8 x Measurement bandwidth)
Frequency Estimation = Manual
Pulse ON power ≥–20 dBm
Signal peak at Ref Lvl.
Atten=0dB
Pulse width ≥ 300 ns.
PRI ≤1000 us.
Duty cycle ≥ 0.0003
t
meas–treference
≤ 10 ms
Measurement time position excludes the beginning and ending of the pulse extending for a time = (10/measurement Bandwidth) as measured from the
50% point of the Tr or Tf.
5
For 110 MHz / 60 MHz bandwidths, and conditions of:
CW (non-chirped) pulses
Frequency Estimation = Manual
Pulse ON power ≥–20 dBm
Signal peak at Ref Lvl.
Atten=0dB
Pulse width ≥ 200 ns.
PRI ≤300 us.
Duty cycle ≥ 0.0007
t
meas–treference
≤ 10 ms
Measurement time position excludes the beginning and ending of the pulse extending for a time = (10/Measurement Bandwidth) as measured from the
50% point of the Tr or Tf.
6
For 20 MHz bandwidth, and conditions of:
CW (non-chirped) pulses
Frequency Estimation = Manual
Pulse ON power ≥–20 dBm
Signal peak at Ref Lvl.
Atten=0dB
Pulse width ≥ 300 ns.
PRI ≤300 us.
Duty cycle ≥ 0.001
t
meas–treference
≤ 10 ms
Measurement time position excludes the beginning and ending of the pulse extending for a time = (10/Measurement Bandwidth) as measured from the
50% point of the Tr or Tf.
7
Hz bandwidth, and conditions of:
For 20 M
Linear chirped pulses
For signal type: Linear chirp, Peak to peak chirp deviation: ≤ (0.8 x Measurement bandwidth)
Frequency Estimation = Manual
Pulse ON power ≥–20 dBm
Signal peak at Ref Lvl.
Atten=0dB
Pulse width ≥ 100 ns.
PRI ≤300 us.
Duty cycle ≥ 0.0003
t
meas–treference
≤ 10 ms
Measurement time position excludes the beginning and ending of the pulse extending for a time = (10/Measurement Bandwidth) as measured from the
50% point of the Tr or Tf.
SPECMON3 and SPECMON6 Technical Reference13
Specifications
8
For 20 MHz bandw
idth, and conditions of:
Linear chirped pulses
For signal type: Linear chirp, Peak to peak chirp deviation: ≤ (0.8 x Measurement bandwidth)
Frequency Estimation = Manual
Pulse ON power ≥–20 dBm
Signal peak at Ref Lvl.
Atten=0dB
Pulse width ≥ 300 ns.
PRI ≤1000 us.
Duty cycle ≥ 0.0003
t
meas–treference
≤ 10 ms
Measurement time position excludes the beginning and ending of the pulse extending for a time = (10/Measurement Bandwidth) as measured from the
50% point of the Tr or Tf.
9
For 60 MHz / 110 MHz bandwidth, and conditions of:
CW (non-chirped) pulses
Frequency Estimatio
n = Manual
Pulse ON power ≥–20 dBm
Signal peak at Ref Lvl.
Atten=0dB
Pulse width ≥ 200 ns.
PRI ≤300 us.
Duty cycle ≥ 0.0007
Absolute frequency error determined over center 50% of pulse.
10
For 20/25 MHz bandwidth, and conditions of:
CW (non-chirped) pulses
Frequency Estimation = Manual
Pulse ON power ≥–20 dBm
Signal peak at Ref Lvl.
Atten=0dB
Pulse width ≥ 300 ns.
PRI ≤ 300 us.
Duty cycle ≥ 0.001
te frequency error determined over center 50% of pulse
Absolu
11
For 60 MHz / 110 MHz bandwidth, and conditions of:
Linear chirped pulses
For signal type: Linear chirp, Peak to peak chirp deviation: ≤ (0.8 x Measurement bandwidth)
Frequency Estimation = Manual
Pulse ON power ≥–20 dBm
Signal peak at Ref Lvl.
Atten=0dB
Pulse width ≥ 100 ns.
PRI ≤300 us.
Duty cycle ≥ 0.0003
t
meas–treference
≤ 10 ms
Absolute Frequency Error determined over center 50% of pulse.
12
For 20/25 MHz bandwidth, and conditions of:
Linear chirped pulses
For signal type: Linear chirp, Peak to peak chirp deviation: ≤ (0.8 x Measurement bandwidth)
Frequency Estimation = Manual
Pulse ON power ≥–20 dBm
Signal peak at Ref Lvl.
Atten=0dB
Pulse width ≥ 300 ns.
14SPECMON3 and SPECMON6 Technical Reference
Specifications
PRI ≤1000 us.
Duty cycle ≥ 0.0003
t
meas–treference
Absolute Frequency Error determined over center 50% of pulse.
≤ 10 ms
Table 15: Impulse response
CharacteristicDescription
15 to 40 dBImpulse Response Measurement Range
(nominal)
Impulse Response Measurement
Accuracy (typical)
Impulse Response WeightingTaylor Window
1
Chirp width 100 MHz, pulse width 10 μs, minimum signal delay 1% of pulse width or 10/(chirp bandwidth), whichever is greater, and minimum 2000 sample
points during pulse on-time.
Across the width of the chirp
±2 dB
1
For a signal 40 dB in amplitude and delayed 1% to 40% of the chirp width
External Trigger 2 to External Trigger 1
Minimum Delay, nominal
±(Channel Response Flatness + 1 dB) (for mask levels ≥ –50 dB) for masks >30 dB
above the noise floor
±(Channel Response Flatness + 2.5 dB) (for mask levels of –50 dB to –70 dB)
for masks >30 dB above the noise floor
25 MHz (1024 point FFT, 50% overlapping, Standard)
40 MHz (1024 point FFT, 50% overlapping, Option 40)
110 MHz (1024 point FFT, 50% overlapping, Option 110)
Standard:
35.9 μs at 25 MHz span (Standard)
27.3 μs at 40 MHz span (Option 40)
23.9 μs at 85/110 MHz span (Option 85/110)
Option 09:
25.6 μs at 25 MHz span (Standard)
15.4 μs at 40 MHz span n (Option 40)
10.3 μs at 85/110 MHz span (Option 85/110)
Instrument Center Frequency ≥ 50 MHz
Standard:
±18 µs at 25 MHz span for base unit (Standard) RBW=AUTO
±14 μs at 40 MHz span (Option 40), RBW=AUTO
±12 μs at 85/110 MHz span (Option 85/110), RBW=AUTO
Option 09:
±12.8 µs at 25 MHz span for base unit (Standard) RBW=AUTO
±7.8 μs at 40 MHz span (Option 40), RBW=AUTO
±5.2 μs at 85/110 MHz span (Option 85/110), RBW=AUTO
Instrument Center Frequency ≥ 50 MHz
0.01 V
Selectable: 50 Ω or 5 kΩ
Fixed: 5 kΩ
>5ns
>20ns
This is the time from the rising edge of the external gate signal to the rising edge
of the external trigger signal needed to guarantee a trigger will be accepted. This
specification also applies from the falling edge of the external trigger signal to the
falling edge of the e xternal gate signal.
Trigger Output Voltage, nominal (Output
Current < 1mA)
Trigger Output Impedance, nominal50 Ω
Power Trigger Output Position Timing
Uncertainty
Trigger Re-arm Time, minimum10 MHz Acquisition BW: ≤ 25 µs
±10 ns
±12 ns
±15 ns
±20 ns
HIGH: > 2.0 V
LOW: < 0.4 V
±2 sample points (Decimated clock periods, refer to the following table)
This trigger has no specified timing relation to the signal at the RF input. For a given
instrument setup, the delay from the RF input to this trigger output will be the same
within the uncertainty given in this specification. The time delay can be measured for
aspecific instrument setup and it will be stable as long as the setup is not changed.
If the setup changes, the delay should be measured again.
40 MHz Acquisition BW: ≤ 10 µs
110 MHz Acquisition BW: ≤ 4µs
Table 23: Trigger (with Option 200)
racteristic
Cha
Trigger Event Types
Power Trigger Minimum Event
Duration, nominal
Frequency Edge Trigger Range,
nominal
Frequency Edge Trigger Timing
Uncertainty, nominal
Frequency Mask Trigger Maximum
Real-time Event Detection Bandwidth
(Option 52)
cription
Des
wer Level (IF Span BW after RBW and VBW filters)
Po
Frequency Mask (Option 52)
DPX Statistics Trigger
nt Trigger (applies to Power Level Trigger)
Ru
Time-Qualified Trigger
Holdoff Trigger
12 ns (A cq BW = 100 MHz, no TDBW, Option 110)
25 ns (Acq BW = 40 MHz, no TDBW, Option 40)
40 ns (Acq BW = 25 MHz, no TDBW, Standard)
±(1/2 x (ACQ BW or TDBW if TDBW is active) )
Same as power trigger position timing uncertainty.
25 MHz (1024 point FFT, 50% overlapping, Standard)
110 MHz (1024 point FFT, 50% overlapping, Option 110)
22SPECMON3 and SPECMON6 Technical Reference
Table 23: Trigger (with Option 200) (cont.)
CharacteristicDescription
Frequency Mask Trigger Real-time
Event Minimum Duration for 100%
probability of trigger (Option 52),
typical
For signal events 40 ms or longer, the timing uncertainty is not specified.
For Density = Lower, the timing uncertainty is not specified.
Instrument Center Frequency ≥ 50 MHz
Power Trigger or
Frequency Mask Trigger or
DPX Statistics Trigger or
Runt Trigger or
External Trigger or
Gated
Longer or
Inside or
Outside
Reference information: INSIDE means the measured time of the source event is greater than
or equal to the minimum time AND less than or equal to the maximum time.
OUTSIDE means the measured time of the source event is less than the minimum time OR
greater than the maximum time
0nsto10s
Trigger Source is not EXTERNAL: 6.7 ns
Trigger Source is EXTERNAL:
SPAN ≤25 MHz: 20 ns
25 MHz < SPAN ≤ 110 MHz: 6.7 ns
24SPECMON3 and SPECMON6 Technical Reference
Table 23: Trigger (with Option 200) (cont.)
CharacteristicDescription
Time Qualified Trigger (minimum or
maximum) Time Accuracy, nominal
Holdoff TriggerON or OFF
Holdoff Trigger SourceApplied to any allowed combination of trigger source and time qualification
Holdoff Trigger Time Range, nominal
Holdoff Trigger Time Resolution,
nominal
For Power Trigger:
±[(2 X Power Trigger Position Timing Uncertainty) + 6.7 ns];
All conditions for Power Trigger Position timing uncertainty must be met
For FMT:
±[(2 X Frequency Mask Timing Uncertainty) + 6.7 ns];
All conditions for Frequency Mask Trigger timing uncertainty must be met
For DPX Statistics Trigger:
±42 ms;
For External Trigger SPAN ≤ 25 MHz:
±[(2 X External Trigger Timing Uncertainty) + 20 ns];
All conditions for External Trigger Timing uncertainty must be met
For External Trigger 25 MHz < SPAN ≤ 110 MHz:
±[(2 X External Trigger Timing Uncertainty) + 6.7 ns];
All conditions for External Trigger Timing uncertainty must be met
Instrument Center Frequency ≥ 50 MHz
Reference Information: Holdoff Trigger means triggers will be held off until a period of time
equal to or greater than the Holdoff Trigger Time occurs with no trigger events; once the
Holdoff timer has expired, a trigger will be generated on the next trigger event
20 ns to 10 s
Trigger Source is not EXTERNAL: 6.7 ns
Trigger Source is EXTERNAL:
SPAN ≤40 MHz: 20 ns
40 MHz < SPAN ≤ 11 0 MHz: 6.7 ns
Specifications
SPECMON3 and SPECMON6 Technical Reference25
Specifications
Table 23: Trigger (with Option 200) (cont.)
CharacteristicDescription
Holdoff Trigger Time Accuracy,
nominal
For Power Trigger:
±(Power Trigger Position Timing Uncertainty + 6.7 ns);
All conditions for Power Trigger Position Timing Uncertainty must be met
Table 41: Digital phosphor spectrum processing (DPx)
CharacteristicDescription
Spectrum Processing Rate,
l
nomina
gnal Duration for 100%
Min Si
Probability of Intercept, typical
Standard instrument
Min Signal Duration for 100%
ability of Intercept, typical
Prob
Option 200
Span Range, nominal100 Hz to 25 MHz (Standard)
48,833 per second (Span Independent)
0 per second (Span Independent) (Option 200)
292,00
s (Standard, Option 40)
30.7 μ
24 μs (Option 110, instrument center frequency ≥ 50 MHz)
Standard, Span = 25 MHzOption 40, Span = 40 MHz
DPX RBWMinimum event
duration (μs)
5MHz4.05MHz3.9
z
1MH
100 kHz27.5300 kHz11.4
10 kHz267.8100 kHz30.8
tion 110, Span = 110 MHz
Op
DPX RBWMinimum event
10 MHz3.7
1MHz5.8
100 kHz37.6
100 Hz to 40 MHz (Option 40)
100 Hz to 110 MHz (Option 110)
5.81 MH
uration (μs)
d
and 40 MHz BW
1
DPX RBWMinimum event
duration (μs)
10
z
kHz
5.8
29
4.5
36SPECMON3 and SPECMON6 Technical Reference
Table 41: Digital phosphor spectrum processing (DPx) (cont.)
CharacteristicDescription
RBW Settings, nominal
RBW Accuracy
Span Accuracy
(Option 200)
Amplitude Accuracy
(Option 200)
Zerospan, Frequency, or Phase
Measurement BW Range,
nominal
Acquisition
Bandwidth
110 MHz
(Option 110)
85 MHz
(Option 110)
55 MHz
(Option 110)
40 MHz
(Option
40/110)
25 MHz214 kHz10 kHz3 MHz
20 MHz107 kHz5 kHz2 MHz
10 MHz53.3 kHz2 kHz1 MHz
5 MHz26.7 kHz1 kHz500 kHz
2 MHz13.4 kHz500 Hz200 kHz
1 MHz6.66 kHz200 Hz100 kHz
500 kHz3.33 kHz100 Hz50 kHz
200 kHz1.67 kHz50 Hz20 kHz
100 kHz833 Hz20 Hz10 kHz
50 kHz417 Hz10 Hz5 kHz
20 kHz209 Hz5 Hz2 kHz
10 kHz105 Hz2 Hz1 kHz
5 kHz52 Hz1 Hz500 Hz
2 kHz13.1 Hz1 Hz200 Hz
1 kHz6.51 Hz1 Hz100 Hz
500 Hz3.26 Hz1 Hz50 Hz
200 Hz1.63 Hz1 Hz20 Hz
100 Hz0.819 Hz1 Hz10 Hz
±1%
±1%
±0.5 dB
Reference Information: This specification is in addition to the overall amplitude accuracy
uncertainty for spectrum analysis mode, and includes any channel flatness degradation caused
by the real-time flatness correction in DPX mode. Measured using the DP X average trace.
Realtek HD Audio ( ALC888 ), Internal speaker, Rear panel Headphone out, Mic IN
Safety
For detailed information on Safety, see the SPECMON3 Real-Time Spectrum
Analyzer and SPECMON6 Real-Time Spe ctrum Analyzer Quick Start User
Manual, Tektronix part number 071-3064-XX.
Certifications and Compliances
For detailed information on Certifications and Compliances, see the SPECMON3
Real-Time Spectrum Analyzer and SPECMON6 Real-Time Spectrum Analyzer
Quick Start User Manual.
Environmental Characteristics
Table 52: Environmental characteristics
CharacteristicDescription
Temperature range
Relative Humidity
Altitude
1
Operating+5 °C to +40 °C
When accessing DVD
Non-operating
OperatingUp to 3000 m (approximately 10000 ft)
Non-operating
+5 °C to +40 °C
–20 °C to +60 °C
90% RH at 30 °C (No condensation) (80% RH max
when accessing CD)
Maximum wet-bulb temperature 29 °C
Up to 12190 m (40000 ft)
44SPECMON3 and SPECMON6 Technical Reference
Table 52: Environmental characteristics (cont.)
CharacteristicDescription
Vibration
Operating0.22 Grms. Profile = 0.00010 g2/Hz at 5 Hz to 350 Hz,
–3dB/Octave slope from 350 Hz to 500 Hz, 0.00007
2
g
/Hz at 500 Hz, 3 Axes at 10 min/axis (Except when
accessing DVD/CD), Class 8. Electrical Specifications
defined in sections above are not warranted under the
operating vibration conditions.
Non-operating
Shock
Operating(15 G), half-sine, 11 ms duration.
Non-operating
Cooling Clearance
Both Sides50 mm (1.97 in)
1
sured one inch (2.5 cm) away from the ventilation air intake (located at the left side of the instrument when viewed from the front).
Mea
2.28 Grms. Profile = 0.0175 g
–3 dB/Octave slope from 100 Hz to 200 Hz, 0.00875
2
g
/Hz at 200 Hz to 350 Hz, –3dB/Octave slope from
350 Hz to 500 Hz, 0.00613 g
10 min/axis. Class 5
Three shocks per axis in each direction (18 shocks
total)
(1 G max when accessing DVD)
(DVD tray ejection may occur)
2
296 m/s
(30 G), half-sine, 11 ms duration.
Three shocks per axis in each direction (18 shocks
total) (DVD tray ejection may occur)
Specifications
2
/Hz at 5 Hz to 100 Hz ,
2
/Hz at 500 Hz, 3 Axes at
Table 53: Power requirements
CharacteristicDescription
Voltage range
50 Hz/60 H z
100 V - 120 V
200 V - 240 V
400 Hz90 V - 132 V
Maximum
Maximum power400 W
Power
dissipation
(fully loaded)
Maximum line current5.5 A mps at 50 Hz, 90 V line
Surge CurrentMAX 35 A peak (25 °C) for ≤5 line c ycles, after product has been turned off for
at least 30 s.
SPECMON3 and SPECMON6 Technical Reference45
Specifications
Digital IQ Out
put Connector Pin Assignment (Option 55 Only)
Figure 1: Digital IQ output connector pin assignment
Table 54: I
Pin numberSignal nameDescription
1
26
2
27
3EXT_I0–
28EXT_I0+
4EXT_
29EXT_I1+
5
30EXT
6EXT_I3–
31EXT_I3+
7
32
8E
33EXT_I4+
9EXT_I5–
34EXT_I5+
10EXT_I6–
35EXT_I6+
11EXT_I7–
36EXT_I7+
12
37
OUTPUT connector pin assignment
IQ_ENABLE*IQ output enable signal input
Open: IQ output disable
GND: IQ o
GNDGround
EXT_IQ
Q_MSW+
EXT_I
I1–
EXT_I2–
_I2+
GND
GND
XT_I4–
GND
GND
_MSW–
ed for future use
Reserv
ut data (bit 0), LVDS
I outp
I output data (bit 1), LVDS
I output data (bit 2), LVDS
tput data (bit 3), LVDS
Iou
Ground
I output data (bit 4), LVDS
I output data (bit 5), LVDS
I output data (bit 6), LVDS
I output data (bit 7), LVDS
Ground
utput enable
46SPECMON3 and SPECMON6 Technical Reference
Table 54: I OUTPUT connector pin assignment (cont.)
All I/Q output signals are synchronous to clock EXT_IQ_CLK. The clock
operates at either 50 MHz or 150 MHz, depending on the selected real-time span
of the analyzer. (See Table 58.)
Data is valid when the EXT_IQ_DAV signal is asserted high; data is invalid when
EXT_IQ_DAV is low. The EXT_IQ_DAV duty cycle varies with the real-time
SPAN, as shown in the following table. At spans where the duty cycle is less than
100%, the EXT_IQ_DAV signal is high for one clock cycle, then low for one
or more clock cycles.
Table 57: EXT_IQ_DAV Duty cycle versus Span
SpanEXT_IQ_CLK frequency (MHz)EXT_IQ_DAV duty cycle (%)
60 MHz15050.0
40 MHz50100.0
20 MHz5050.0
10 MHz5025.0
5 MHz5012.5
2 MHz506.250
1 MHz503.125
500 kHz501.5625
200 kHz500.78125
100 kHz500.39063
SPECMON3 and SPECMON6 Technical Reference49
Specifications
Table 57: EXT_IQ_DAV Duty cycle versus Span (cont.)
SpanEXT_IQ_CLK frequency (MHz)EXT_IQ_DAV duty cycle (%)
50 kHz500.19531
20 kHz500.097656
10 kHz500.048828
5 kHz500.024414
2 kHz500.006104
1 kHz500.003052
500 kHz500.001526
200 kHz500.000763
100 kHz500.000381
The risi
ng edge of EXT_IQ_CLK is aligned to be in the center of the settled
EXT_I[15:0], EXT_Q[15:0], and EXT_IQ_DAV signals.
Figure 2: IQ Timing
able 58: IQ Timing
T
Real Time SpanT0T1T2
>40MHz6.6ns1.54ns1.58ns
≤40 MHz20 ns8.2 ns8.4 ns
50SPECMON3 and SPECMON6 Technical Reference
Specifications
Possible Interruption
of Data from Digital I/Q
Outputs
There are three
data to the digital I/Q outputs. Those conditions are:
Alignments
Control Changes
Stitched Spectrum Mode
When any of these conditions are active, the EXT_IQ_DAV signal will be held in
its inactive state. The EXT_IQ_CLK sign al will remain active and operate at the
frequency consistent with the SPAN value selected for the analyzer.
The EXT_IQ_DAV signal will remain inactive for the duration of any alignment
or control change. Once the alignment or control change has been completed, the
EXT_IQ_DAV signal becomes active again. While the EXT_IQ_DAV signal is
inactive, the data from the digital I/Q outputs are not valid and should be ignored.
The duty cycle of the EXT_IQ_DAV signal varies from 100% at the widest SPAN
values to a very small percentage at the narrowest SPAN
At a SPAN of 100 Hz, the duty cycle will be 0.00038%; here, the EXT_IQ_DAV
signal is active (high) for 20 ns, and then inactive (low) for ≈5.28 ms.
The length of time that the EXT_IQ_DAV signal is inactive can be used to
determine if the analyzer is performing an alignment or a control change. If the
EXT_IQ_DAV signal is inactive for longer than 10 ms, then the SPECMON
analyzer digital I/Q output data stream has been interrupted.
conditions during which the analyzer will interrupt the flow of
values. (See Table 57.)
Digital IQ Output Scaling
External equipment used to detect the occurrence of a data interruption can
monitor the state of the EXT_IQ_DAV signal. If the EXT_IQ_DAV signal is
inactive for 10 ms or more, an alignment or control change has occurred. The
duration of the data interruption can be determined by measuring the time between
successive EXT_IQ_DAV pulses.
Output power in dBm for a sinusoidal input
Where:
Where:
I and Q are the digital values at the Digital IQ output port
Ref = Reference Level
Valid for center frequencies that exceed:
Center frequency ≥ 80MHzforSpans>40MHz
Center frequency ≥ 30 MHz for Spans > 312.5 kHz and ≤ 40 MHz
Center frequency ≥ 2 MHz for Spans < 312.3 kHz
SPECMON3 and SPECMON6 Technical Reference51
Specifications
52SPECMON3 and SPECMON6 Technical Reference
Performance Verification
NOTE. The performance verification procedure is not a calibration procedure.
The p erforma
key specifications. For your instrument to be calibrated, it must be returned to a
Tektronix service facility.
nce verification procedure only verifies that your instrument meets
Prerequis
ites
The tests in this section make up an extensive, valid confirmation of performance
and functionality when the following requirements are met:
The cabinet must be installed on the instrument.
The instrument must have passed the Power On Self Tests (POST).
The instrument must have been last adjusted at an ambient temperature
between +18 °C (+64 °F) and +28 °C (+82 °F), must have been operating for
a warm-up period of at least 20 minutes after starting the analyzer application,
and must be operating at an ambient temperature. (See Table 52.)
Required Equipm ent
The procedures, use external, traceable signal sources to directly check w arranted
acteristics. (See page 57, Warranted Characteristics Tests.) The following
char
table lists the equipment required for this procedure.
Table 59: Equipment required for Performance Verification
Item number andMinimum requirementsExamplePurpose
1.Fre
2.RF Power MeterAgilent E4418B
3.RF Power Sensor9 kHz to 18 GHz RF Flatness: <3% Calibration
4.Signal GeneratorFrequency Accuracy: ±3 x 10–7Output
Checking phase
noise and third
order intermodulation
distortion
30 dB
Agilent 11667AAdjusting signal
generator output level
Isolation: >18 dB
Insertion loss: 6 dB
Agilent 11667A with
attenuators
2
Checking
intermodulation
distortion
3 dB = 2200 MHz
< 3 dB loss DC –3 GHz
>50 dB rejection 4 GHz to 14 GHz
Checking third order
intermodulation
distortion
Capable of measuring 30 VDCStandard EquipmentChecking Noise Source
Tektronix part number
Signal interconnection
011-0049-01
50 Ω, 36 i n. male to male N connectorsSignal interconnection
Impedance: 50 Ω Type N maleSignal interconnection
Tektronix part number
103-0058-00
N cable to analyzer
connections
Tektronix part number
131-8508-00
50 Ω, 36 in. male N to male SMA connectors
3 dB (two required)
Midwest Microwave
ATT-0550-03-35M-02
Checking third order
intermodulation
distortion
54SPECMON3 and SPECMON6 Technical Reference
Performance Verification
Preliminary C
Fan Check
CD Drive Check
hecks
Warm-up
These steps should be performed before proceeding to the Warranted
Characteristics tests.
Plug in the analyzer, power it on, and check that the fans located on the left side
of the analyzer are operating.
CAUTION. Turn the analyzer off immediately if the fans are not operating.
Operating
Make sure the analyzer application is running, and allow the instrument to warm
up for at
NOTE. The fans will slow down and be quieter when the application is started;
this is normal. Fan speed may vary while the application is running, depending
on the internal temperature detected by the instrument.
Press the button on the DVD-R/W drive (Option 57 only) and verify that the tray
door opens. Press the button again to close it.
the Spectrum Analyzer without fans will damage the instrument.
least 20 minutes.
Touch Screen Check
Diagnostics
Check that the touch screen detects touches:
1. Ver
2. Use your finger or a stylus to touch several of the on-screen touchable
Run a complete Diagnostics test session:
1. Select Tools > Diagnostics from the menubar.
2. Select the All Modules, All Tests checkbox at the top of the list.
ify that the touch screen is enabled (TouchScreenOffbutton is not
lighted).
readouts, such as RBW or Span, and verify they become active when touched.
SPECMON3 and SPECMON6 Technical Reference55
Performance Verification
3. Touch t h e RUN bu
and some of them are interactive:
a. NoiseSourceD
source output on the analyzer rear-panel.
Check with a
b. The LED Check diagnostic will ask you to verify that all the highlighted
LEDs are tur
Compare the LEDs highlighted in the diagnostic display with the
buttons on
Press each of the keys and rotate the knob on the front panel. You
should se
Verify that each key is recognized.
Click th
c. The Display Pixel Test will ask you to look for video problems on the
tterns:
test pa
Check the Green screen for any stuck or missing pixels. Any keypress,
click
Repeat with the Red screen, the Blue Screen, and the Gray scale
en. Select Yes or No when the LC D Test dialog asks “Did you
scre
see any video problems”.
tton. The diagnostics tests will take some time to complete,
rive 28VDC Out diagnostic will ask you to test the noise
voltmeter that the voltage is 28 V ±2 V.
ned on:
the front panel.
e the corresponding key in the diagnostic display turn green.
e PASS or FAIL button when done.
, or touch will move to the next screen.
Alignment
4. Whe
5. Click the Diagnostics Failure Info tab and verify there is no failure
6. Click the Exit Diagnostics button to exit diagnostics.
You should align the instrument before proceeding with the Warranted
Characteristics tests.
1. Select Alignments in the To ol s menu. The Alignments dialog box will open.
2. Select Align Now. The alignment process will take a few minutes.
3. Verify that no alignment failures are reported in the status bar.
n all diagnostics tests have completed, check that there is a check mark
beside each diagnostic name. An X instead of a check mark indicates that
the diagnostic had a failure.
information listed.
56SPECMON3 and SPECMON6 Technical Reference
Performance Verification
Warranted Cha
racteristics Tests
Frequency Accuracy
Check Reference Output
Frequency A
ccuracy
The following procedures verify the SPECMON3 and SPECMON6 Spectrum
Analyzer performance is within the warranted specifications.
1. Connect Ref Out on the analyzer rear-panel through a 50 Ω precision coaxial
cable to th
2. Connect a precision frequency reference to the frequency counter.
e frequency counter input. See the following figure.
Figure 3: Connections for Reference Frequency Output Accuracy check
3. Set the Frequency counter:
FunctionFrequency
Gate time
4. Check that the frequency counter reads 10 MHz ±4 Hz. Enter the frequency
in the test record.
2s
SPECMON3 and SPECMON6 Technical Reference57
Performance Verification
Check Reference Output
Power Level
1. Set up the power
NOTE. Store the power sensor correction factors in the power meter, if you have
not yet done so.
a. Connect the power sensor to the Sensor input on the power meter, as
shown in the following figure.
Figure 4: Power meter setup
b. Press Zero/Cal,thenpressZERO on the power meter.
c. Connect the RF input of the power sensor to the power meter power
reference output, as shown in t he following figure.
meter and sensor.
Figure 5 : Power meter calibration
d. Press CAL to execute the calibration.
e. Disconnect the RF input of the power sensor from the power meter
reference output.
2. Connect the power sensor RF input to the Ref Out connector on the
SPECMON analyzer rear-panel, using the N-female to BNC male adapter (see
the following figure).
3. Press Frequency/Cal Factor, then set Freq to 10 MHz.
4. Check that the Ref Out signal is >0 dBm. Enter this level in the test record.
58SPECMON3 and SPECMON6 Technical Reference
Performance Verification
Figure 6: Equipment connections for Ref Out power level check
External Reference Input
Level
1. Connect the signal generator output to the Ref In connector on the analyzer
rear panel, using a 50 Ω N-N coaxial cable and N-female to BNC male adapter
(see the following figure).
Figure 7: Equipment connections for Ref In power level check
2. Set the Signal generator controls:
Frequency10 MHz
Level0 dBm
RF
On
3. Set the anallyzer to use the external reference:
a. Select Setup > Configure In/Out > Frequency Reference.
b. Select the External radio button.
4. Check the Input Reference limits:
a. Check that the Status Bar shows Ref: Ext.
b. Set the Source to Internal (10 MHz).
c. Set the signal generator output level to –10 dBm.
SPECMON3 and SPECMON6 Technical Reference59
Performance Verification
d. Set the Source t
e. Check that the Status Bar shows Ref: Ext.
f.Set the Source to Internal (10 MHz).
g. Set the signal generator output level to +6 dBm.
h. Set the Source to External.
i.Check that the Status Bar shows Ref: Ext.
j.Disconnec
message should pop up to indicate loss of lock (see the following figure).
Figure
8: Error message showing loss of lock to External Reference signal
o External.
t the signal generator from the Ref In connector. An error
k. Click
l.Ente
OK on the error message, and check that the Status Bar shows
Ref: Int.
r Pass or Fail in the test record.
Phase Noise (Instruments with Option 11)
ption 11 is installed in your instrument, use the following procedure to check
If O
the phase noise. If Option 11 is not installed in your instrument, use the procedure
(See page 62, Phase Noise (Instruments without Option 11).) that follows.
NOTE. The intent of the Phase Noise test is to measure the phase noise level of
the instrument. The phase noise specification does not cover residual spurs. If
the specific measurement frequency results in measuring a residual spur that
s visible above the noise level, the phase noise specifi cation applies not to the
i
spur but to the noise level on either side of the spur. Please refer to the Spurious
Response specifications. (See Table 16.). Also, refer to the Spurious Response
section of this p rocedure to determine whether or not a residual spur is within
the specification. (See page 93, Spurious Response.)
60SPECMON3 and SPECMON6 Technical Reference
Performance Verification
1. Connect the gen
erator output to the RTSA RF Input, using a 50 Ω N-N coaxial
cable(seethefollowingfigure).
Figure 9: Equipment connections for phase noise checks
2. Reset the analyzer to factory defaults: select Setup > Preset (Main) from
the Setup menu.
3. Select To ol s > Alignments andthenselectAlign Now.
8. Select Setup > Settings to display the Phase Noise settings control panel.
9. On the Frequency tab, set the Start Offset to 1 kHz for both the Measurement
BW and the Integration BW.
10. Set the Stop Offset to 10 MHz for both the Measurement BW and the
Integration BW.
11. Select the Parameters tab.
12. Set the Average value to 20 and click the check box to enable averaging.
13. Select the Traces tab.
14. Select T
so that Trace 2 is not be displayed.
15. Select
the Marker readout on the left side of the graph. Set the Marker value to
6MHz.
16. Press the Single key and wait for 20 averages to complete.
race 2 in the Trace drop-down list. Deselect the Show checkbox
Trace 1 from the trace drop-down list above the graph display. Select
trum display and select Remove.
17. Read t
18. Document the test results in the test record at each frequency.
he value for the 6 MHz offset from the Offset readout.
Phase Noise (Instruments without Option 11)
Check Phase Noise
If Option 11 is not installed in your instrument, use the following procedure
check the phase noise. If Option 11 is installed in your instrument, use the
to
preceding (See page 60, Phase Noise (Instruments with Option 11).) procedure.
NOTE. The intent of the Phase Noise test is to measure the phase noise level of
the instrument. The phase noise specification does not cover residual spurs. If
the specific measurement frequency results in measuring a residual spur that
is visible above the noise level, the phase noise specification applies not to the
spur but to the noise level on either side of the spur. Please refer to the Spurious
Response specifications. (See Table 16.). Also, refer to the Spurious Response
section of this p rocedure to determine whether or not a residual spur is within
the specification. (See page 93, Spurious Response.)
62SPECMON3 and SPECMON6 Technical Reference
Performance Verification
1. Connect the gen
erator output to the RTSA RF Input, using a 50 Ω N-N coaxial
cable(seethefollowingfigure).
Figure 10: Equipment connections for phase noise checks
2. Reset the analyzer to factory defaults: Select Setup > Preset (Main) from
the Setup menu.
3. Press Tools > Alignments and then select Align Now.
4. Modify the settings:
Center Frequency
Setup > Settings > Freq & S pan > Center
Span
Setup > Settings > Freq & Span > Span
VBW
Setup > Settings > BW > VBW
Detection
Setup > Settings > Traces > Detection
Function
Setup > Settings > Traces > Function
Count
Setup > Settings > Traces > Count
Trace Points
Setup > Settings > Prefs > Trace Points
Marker Noise Mode
Setup > Settings > Prefs > Marker Noise Mode
RF & IF Optimization
Setup > Amplitude > Internal Settings > RF & IF
Optimization
Reference level
Setup > Amplitude > Internal Settings > Ref Level
1.00 GHz
1MHz
10 Hz (box checked)
Avg (VRMS)
Avg (VRMS)
100 (box checked)
2401
Check Marker Noise mode box
Maximize Dynamic Range
+5 dBm
5. Set the generator as follows:
SPECMON3 and SPECMON6 Technical Reference63
Performance Verification
Frequency
Output level
RF
1.00 GHz
+5 dBm
On
6. Turn on the Reference Marker (MR) and Marker 1 (M1), and set them for
Delta operation and Noise Mode.
a. Select Markers > Define Markers.
b. Select the Add soft key to add the MR marker.
c. Select the Add soft key again to add the M1 marker.
d. Select De
lta from the Readouts dropdown menu.
7. For each span shown in the following table, perform steps through :
Table 60
SpanM1 Offset
4kHz
40 kHz
300 kH
: Phase noise offsets (Low range; without Option 11)
CF + 1 kHz
CF + 10 kHz
z
CF + 100 kHz
a. Press the Span key and enter a Span value from the table.
b. Select Run > Run Single.
c. Select the Reference Marker with the Marker Select key and press the
Peak key.
d. Select Marker 1 (M1) with the marker select key.
t the Marker 1 (M1) frequency by entering the offset value from the
e. Se
table above in the Frequency box at the bottom center of the display.
ead the marker noise level in dBc/Hz, in the Delta Marker readout
f.R
(upper right corner of the screen), and enter the value in the test record.
(Limits are shown in the test record.)
8. Record the generator signal amplitude in the Test Record:
a. Select Marker (MR) with the Marker Select key.
b. Select the Markers Peak key to center the MR marker on the peak of the
1000 MHz signal.
c. Record the MR Marker amplitude (upper-left corner of the screen.) This
value is called Carrier Power andisusedbelow.
64SPECMON3 and SPECMON6 Technical Reference
Performance Verification
9. Obtain the phas
settings listed below:
a. Center Frequency (Freq key): 1001 MHz
b. Span (Span k ey): 10 kHz
c. Reference Level Offset: -30 dBm (This is the amplitude control in the
upper left of the display.)
d. Set input attenuation for manual control.
Select Setup > Amplitude > Internal Settings .
Deselect the Internal Attenuator Auto check box.
Set Internal Attenuator to 0 dB.
a. Select Run > Run Single.
b. Center the M1 marker in the middle of the screen:
Select Markers > Define Markers
Select Readouts > Absolute.
Press the Select key to select the M1 mar
Select Marker Frequency. Set to 1001 MHz.
e noise at 1 MHz offset. Start by setting the analyzer to the
ker.
The m arker is now located at the center frequency position.
a. Read the noise amplitude on Marker M1,indBm/Hz.
b. Subtract the value of MR obtained in step 8 to obtain the phase noise
amplitude at 1 MHz.
For example, if MR = 4.7 dBm and M1 = –129.6 dBm/Hz, then M1-MR =
–134.3 dBc/Hz.
c. Enter the value obtained at 1 MHz in the test record for phase noise at
1MHz.
10. Obtain the phase noise at 6 MHz offset. Start by setting the analyzer to the
settings listed below:
a. Center Frequency (Freq key): 1006 MHz.
b. Span (Span key): 10 kHz.
c. Select Run > Run Single.
d. Set the Mar
e. Read the noise level on Marker M1 in dBm/Hz.
f.Subtract the value of Carrier Power obtained in step 8 in order to obtain
the phase noise amplitude at +6 MHz.
kerM1Frequencyto1006MHz..
SPECMON3 and SPECMON6 Technical Reference65
Performance Verification
For example, if
M1-Carrier Power = – 49.8 dBc/Hz.
g. Enter the valu
6MHz.
11. Obtain the p
the settings below:
a. Center Freq
b. Span (Span key): 10 kHz.
c. Select Run > Run Single.
d. Set the Marker Frequency to 1010 MHz.
NOTE. The intent of the Phase Noise test is to measure the phase noise level of
the instrument. The phase noise specification does not cover residual spurs. If
the spe
is visible above the noise level, the phase noise specification applies not to
the spur but to the noise level on either side of the spur. Please refer to the
Spurious Response specifications. (See Table 16.). Also, refer to the Spurious
Response section of this procedure to determine whether or not a residual spur
is within the specification. (See page 93, Spurious Response.)
hase noise at 10 MHz offset. Start by setting the analyzer to
cific measurement frequency results in measuring a residual spur that
Carrier Power = 4.7 dBm and M1 = -145.1 dBm/Hz, then
e obtained at 6 MHz in the test record for phase noise at
uency (Center key): 1010 MHz.
e. Read the noise amplitude on marker M1 in dBm/Hz.
f.Subtract the value of the Carrier Power marker obtained in step 8 to obtain
the phase noise amplitude at +10 MHz.
For example, if Carrier Power = 4.7 dBm and M1 = –146.1 dBm/Hz,
Then M1-Carrier Power = –150.8 dBc/Hz.
g. Enter the value obtained at 10 MHz in the test record for phase noise
at 10 MHz.
66SPECMON3 and SPECMON6 Technical Reference
Amplitude
Performance Verification
RF Flatness (Frequency
Response) 10 MHz to
6.2 GHz
1. Connect the RF generator, power splitter, power meter, and SPECMON
analyzer, as shown in the following figure.
The power splitter outputs should connect directly to the SPECMON R F Input
and to the Power Sensor, without using cable s.
Figure 11: Equipment connections for RF Flatness check
2. To record the test readings, you can make a printout of the following table.
(See Table 61.)
3. Reset the SPECMON analyzer to factory defaults: Setup > Preset (Main).
4. Select To ol s > Alignments andthenselectAlign Now.
6. Set the RF signal generator for a -14 dBm output amplitude and turn RF On..
7. Set both the RF signal generator output frequency and the SPECMON
analyzer Center Frequency to the first frequency in the RF Flatness table that
follows. This is the reference frequency. (See Table 61.)
SPECMON3 and SPECMON6 Technical Reference67
Performance Verification
8. Select the Mark
ers Peak key to set the Reference Marker (MR) to the carrier
peak.
9. Adjust the RF signal generator output level for a marker reading of –20
±0.5dBm.
10. Record the Power Meter reading and the SPECMON analyzer marker reading
in the following table.
11. Set both the RF Generator output frequency and the SPECMON analyzer
center frequency to the next frequency in the table.
12. Press the Markers Peak key to set the Reference Marker (MR) to the carrier
peak.
13. Calculate the ΔPower Meter number: subtract the Power meter r eading at
100 MHz from the Power Meter reading at this frequency.
14. Calculate the ΔRTSA number: subtract the RTSA reading at 100 MHz from
the RTSA reading at this frequency.
15. Calculate the RF Flatness Error:
RF Flatness Error = ΔRTSA at this freq – ΔPower Meter at this freq
Readings are in dBm, error is in dB.
16. Repeat items 11 through 15 for each of the center frequencies shown in the
RF Flatness table. (See Table 61.)
Table 61: RF Flatness (Preamp OFF)
Attenuator = 10 dB
Power meter
Frequency
100 MHz000
10 MHz
20 MHz
30 MHz
40 MHz
50 MHz
60 MHz
70 MHz
80 MHz
90 MHz
200 MHz
300 MHz
400 MHz
500 MHz
reading
∆ Power meter
(vs. 100 MHz)RTSA reading
∆ RTSA reading
(vs. 100 MHz)
RF flatness
1
error
68SPECMON3 and SPECMON6 Technical Reference
Table 61: RF Flatness (Preamp OFF) (cont.)
Attenuator = 10 dB
Frequency
600 MHz
700 MHz
800 MHz
900 MHz
1.0 GHz
1.1 GHz
1.2 GHz
1.3 GHz
1.4 GHz
1.5 GHz
1.6 GHz
1.7 GHz
1.8 GHz
1.9 GHz
2.0 GHz
2.1 GHz
2.2 GHz
2.3 GHz
2.4 GHz
2.5 GHz
2.6 GHz
2.7 GHz
2.8 GHz
2.9 GHz
3.0 GHz
SPECMON6 only
3.1 GHz
3.2 GHz
3.3 GHz
3.4 GHz
3.5 GHz
3.6 GHz
3.7 GHz
3.8 GHz
3.9 GHz
Power meter
reading
∆ Power meter
(vs. 100 MHz)RTSA reading
∆ RTSA reading
(vs. 100 MHz)
Performance Verification
RF flatness
1
error
SPECMON3 and SPECMON6 Technical Reference69
Performance Verification
Table 61: RF Flatness (Preamp OFF) (cont.)
Attenuator = 10 dB
Frequency
4.0 GHz
4.1 GHz
4.2 GHz
4.3 GHz
4.4 GHz
4.5 GHz
4.6 GHz
4.7 GHz
4.8 GHz
4.9 GHz
5.0 GHz
5.1 GHz
5.2 GHz
5.3 GHz
5.4 GHz
5.5 GHz
5.6 GHz
5.7 GHz
5.8 GHz
5.9 GHz
6.0 GHz
6.1 GHz
6.2 GHz
1
UsetheformulainStep15
Power meter
reading
∆ Power meter
(vs. 100 MHz)RTSA reading
∆ RTSA reading
(vs. 100 MHz)
RF flatness
1
error
17. Enter the largest variation in each of the following frequency ranges into the
test record:
10 MHz - 3 GHz (Preamp OFF)
3 GHz - 6.2 GHz (Preamp Off, SPECMON6 only)
70SPECMON3 and SPECMON6 Technical Reference
Performance Verification
Low Frequency (LF) Input
Path Accuracy
1. Connect the RF g
enerator, power splitter, power meter, and SPECMON
analyzer, as shown in the following figure.
Figure 12: Equipment connections for Low Frequency (LF) input path accuracy
check
2. The power splitter outputs should connect directly to the SPECMON analyzer
RF Input and to the Power Sensor, without using cables.
3. Reset the SPECMON analyzer to factory defaults; select Setup > Preset
(Main).
4. Select To ol s > Alignments andthenselectAlign Now.
5. Set the SPECMON analyzer as follows:
Ref Level
Setup > Amplitude > Internal Settings > Ref
Level
Internal Attenuator
Setup > Amplitude > Internal Settings
Span
Setup > Settings > Freq & Span > Span
LF Path
Setup > Acquire > Input Params
–15 dBm
10 dB (Auto unchecked)
1MHz
Use Low Freq box checked
6. Set the RF generator for a –14 dBm output amplitude and turn RF On.
7. Set both the RF signal generator output frequency and the SPECMON
analyzer Center Frequency to the first frequency shown in the table Low
Frequency Input Path Flatness (Preamp Off, if installed) (See Table 62.). This
is the reference frequency.
SPECMON3 and SPECMON6 Technical Reference71
Performance Verification
8. Select the Mark
ers Peak key to s et the Reference Marker (MR) to the carrier
peak.
9. Adjust the RF signal generator output level for a maker reading of
–20 ± 0.5 dBm.
10. Record the Power Meter reading and the SPECMON analyzer marker reading
in the following table.
11. Set both the RF generator output frequency and the SPECMON analyzer
Center Frequency to the next frequency in the table.
12. Select the Markers Peak key to set the Reference Marker (MR) to the carrier
peak.
13. Record the Power Meter reading and the SPECMON analyzer marker reading
in the following table.
14. Calculate the Δ Power Meter number: subtract the Power Meter reading at
10 MHz from the Power Meter reading at this frequency.
15. Calculate the Δ RTSA number: subtract the RTSA reading at 10 MHz from
the RTSA reading at this frequency.
16. Calculate the RF Flatness Error:
RF Flatness Error = Δ RTSA at this freq - Δ Power Meter at this freq
Readings are in dBm, error is in dB.
17. Repeat parts 11 through 16 for each of the center frequencies shown in the
following table.
Table 62: Low Frequency Input Path Flatness (Preamp OFF)
Attenuator = 10 dB
Power meter
Frequency
10 MHz000
11 MH z
12 MHz
13 MHz
14 MHz
15 MHz
16 MHz
17 MHz
18 MHz
19 MHz
20 MHz
21 MH z
reading
∆ Power meter
(vs. 10 MHz)RTSA reading
∆ RTSA reading
(vs. 10 MHz)
RF flatness
1
error
72SPECMON3 and SPECMON6 Technical Reference
Table 62: Low Frequency Input Path Flatness (Preamp OFF) (cont.)
Attenuator = 10 dB
Frequency
22 MHz
23 MHz
24 MHz
25 MHz
26 MHz
27 MHz
28 MHz
29 MHz
30 MHz
31 MHz
31.49 MHz
1
e formula in Step 16
Use th
Power meter
reading
∆ Power meter
(vs. 10 MHz)RTSA reading
∆ RTSA reading
(vs. 10 MHz)
Performance Verification
RF flatness
1
error
18. Enter the largest variation in each of the following frequency range into the
ecord:
test r
10 MHz - 32 MHz (Preamp OFF)
SPECMON3 and SPECMON6 Technical Reference73
Performance Verification
RF Flatness (Frequ ency
Response) 10 MHz to
6.2 GHz , Preamp On
(Option 50 Installed)
1. Connect the RF g
enerator, power splitter, power meter, and SPECMON
analyzer, as shown in the following figure. The 30 dB attenuator is connected
between the power splitter and the SPECMON analyzer RF input connector.
Figure 13: Equipment connections for RF Flatn
ess (Frequency Response) 10 MHz
to 6.2 GHz check
2. Reset the SPECMON analyzer to factory defaults: select Setup > Preset
(Main).
3. Select Tool s > Alignments and then select Align Now.
4. Set the SPECMON analyzer as follows:
Ref Level
Setup > Amplitude > Internal Settings > Ref
Level
Internal Attenuator
Setup > Amplitude > Internal Attenuator
Internal Preamp
Setup > Amplitude > Internal Settings
Span
Setup > Settings > Freq & Span > Span
LF Path
Setup > Acquire > Input Params
–45 dBm
10 dB (Auto unchecked)
Internal Preamp box checked
1MHz
Use Low Freq Signal path box unchecked
5. Set the RF generator for a –14 dBm output amplitude and turn RF On.
6. Set both the RF signal generator output frequency and the SPECMON
analyzer Center Frequency to the first frequency shown in the table RF
Flatness (Option 50 Preamp ON) (See Table 63.). This is the reference
frequency.
74SPECMON3 and SPECMON6 Technical Reference
Performance Verification
7. Select the Mark
ers Peak key to s et the Reference Marker (MR) to the carrier
peak.
8. Record the Power Meter reading and the SPECMON analyzer marker reading
in the following table.
9. Set both the RF generator output frequency and the SPECMON analyzer
Center Frequency to the next frequency in the table.
10. Select the Markers Peak key to set the Reference Marker (MR) to the carrier
peak.
11. Calculate the ΔPower Meter number: subtract the Power Meter reading at
100 MHz from the Power Meter reading at this frequency.
12. Calculate the ΔRTSA number: subtract the RTSA reading at 100 MHz from
the RTSA reading at this frequency.
13. Calculate the RF Flatness Error:
RF Flatness Error = ΔRTSA at this freq - ΔPower Meter at this freq + delta
30 dB attenuator at this frequency
Readings are in dBm and error is in dB.
14. Repeat steps 9 through 13 for each of the center frequencies shown in the
following table.
15. Enter the largest variation in each of the following frequency range into the
test record:
10 MHz - 3 GHz (Preamp On, Option 50 only)
3.1 MHz - 6.2 GHz (Preamp On, SPECMON6 only)
SPECMON3 and SPECMON6 Technical Reference77
Performance Verification
Low Frequency (LF) Input
Path, Preamplifier On
Accuracy (Option 50 Only)
1. Connect the RF g
enerator, power splitter, power meter, and SPECMON
analyzer, as shown in the following figure.
Figure 14: Equipment connections for Low Frequency (LF) input path accuracy
check
NOTE. The power splitter outputs should connect directly to the SPECMON
analyzer RF Input and to the Power Sensor, without using cables. The 30 dB
attenuator is connected between the power splitter and the SPECMON analyzer
RF input connector.
2. Reset the SPECMON anallyzer to factory defaults: select Setup > Preset
(Main).
3. Select Tool s > Alignments and select Align Now.
4. Set the SPECMON analyzer as follows:
Ref Level
Setup > Amplitude > Internal Settings > Ref Level
Internal Attenuator
Setup > Amplitude > Internal Attenuator
Internal Preamp
Setup > Amplitude > Internal Settings
Span
Setup > Settings > Freq & Span > Span
LF Path
Setup > Acquire > Input Params
–45 dBm
10 dB (Auto unchecked)
Internal Preamp box
checked
1MHz
Use Low Freq Signal
path box checked
78SPECMON3 and SPECMON6 Technical Reference
Performance Verification
5. Set the RF gener
ator for a –14 dBm output amplitude and turn RF On.
6. Set both the RF signal generator output frequency and the SPECMON
analyzer Center Frequency to the first frequency shown in the table LowFrequency Input Path Flatness (Preamp ON) (See Table 64.). This is the
reference frequency.
7. Select the Markers Peak key to set the Reference Marker (MR) to the carrier
peak.
8. Adjust the RF signal generator level for a marker reading of –50 ±0.5 dBm
9. Record the Power Meter reading and the SPECMON analyzer marker reading
in the following table. (See Table 64.)
10. Set b oth the RF generator output frequency and the SPECMON analyzer
Center Frequency to the next frequency in the table. (See Table 64.)
11. Select the Markers Peak key to set the Reference Marker (MR) to the carrier
peak.
12. Record the Power Meter reading and the SPECMON analyzer marker reading
in the following table. (See Table 64.)
13. Calculate the ΔPower Meter number: subtract the Power Meter reading at
10 MHz from the Power Meter reading at this frequency.
14. Calculate the ΔRTSA number: subtract the RTSA reading at 10 MHz from
the RTSA reading at this frequency.
15. Calculate the RF Flatness Error:
RF Flatness Error = ΔRTSA at this freq - ΔPower Meter at this frequency +
delta 30 dB attenuator at this frequency
Readings are in dBm and error is in dB.
16. Repeat steps 10 through 15 for each of the center frequencies shown in the
following table.
Table 64: Low Frequency Input Path Flatness (Preamp ON)
Attenuator = 10 dB
Power
meter
Frequency
10 MHz000
11 MH z
12 MHz
13 MHz
14 MHz
15 MHz
reading
∆ Power
meter (vs.
10 MHz)
RTSA
reading
∆ RTSA
reading (vs.
10 MHz)
30 dB
attenuator
Δ30 dB
attenuator
RF flatness
1
error
SPECMON3 and SPECMON6 Technical Reference79
Performance Verification
Table 64: Low Frequency Input Path Flatness (Preamp ON) (cont.)
Attenuator = 10 dB
Power
meter
Frequency
16 MHz
17 MHz
18 MHz
19 MHz
20 MHz
21 MHz
22 MHz
23 MHz
24 MHz
25 MHz
26 MHz
27 MHz
28 MHz
29 MHz
30 MHz
31 MHz
31.49 MHz
1
UsetheformulainStep15
reading
∆ Power
meter (vs.
10 MHz)
RTSA
reading
∆ RTSA
reading (vs.
10 MHz)
30 dB
attenuator
Δ30 dB
attenuator
RF flatness
1
error
Absolute Accuracy at
Calibration Point, RF Path
17. Enter the largest variation in each of the following frequency range into the
test record:
10 MHz - 32 MHz (Preamp ON)
1. Connect the RF generator, power splitter, power meter, and SPECMON
analyzer. ( See Figure 11.)
2. Reset the SPECMON analyzer to factory defaults: select Setup > Preset
(Main).
3. Select Tool s > Alignments and select Align Now.
4. Set the SPECMON alalyzer:
Reference Level
Setup > Amplitude > Internal Settings > Ref Level
Center Frequency
Setup > Settings > Center
–20 dBm
100 MHz
80SPECMON3 and SPECMON6 Technical Reference
Performance Verification
5. Set the RF Gener
Output Frequency
Output Level
RF
ator:
100 MHz
–14 dBm
On
6. Set the frequency span (Span key) to 300 kHz.
7. Press the Markers > Peak key to set the Reference Marker (MR) to the
carrier peak.
8. Record the reading on the Power Meter and on the SPECMON analyzer
marker amplitude.
9. Calculate the Absolute Amplitude Accuracy:
Delta = SPECMON reading - Power Meter reading
Readings are in dBm, error is in dB.
10. Record the Absolute Amplitude Error in the test record. (Limits are shown in
the test record.)
5. Set each of the rf signal generators to provide a power level of –22 dBm
and turn RF On.
a. Set the first generator output frequency to 2.1295 GHz, and the second
generator output f requency to 2.1305 GHz.
b. Set the SPECMON analyzer Function to Normal (Setup > Settings >
Traces > Function > Normal).
c. Set the SPECMON analyzer Center frequency to 2.1295 GHz. Press the
Markers Peak key. Adjust the first generator output level for a marker
reading of –25.0dBm. Record this as carrier #1.
d. Set the SPECMON analyzer Center frequency to 2.1305 GHz Press the
Markers Peak key. Adjust the second generator output level for a marker
reading of –25.0. This is carrier amplitude #2.
6. Set the SPECMON analyzer Function to Averaging (Setup > Settings > Traces
>Function>Avg(VRMS)).
7. Set the RTSA center frequency to 2.1285 GHz. After averaging has
completed, press the Markers Peak key and read the amplitude level of the
signal displayed at the center of the screen. Record this as TOI #1.
SPECMON3 and SPECMON6 Technical Reference83
Performance Verification
DANL - Preamp OFF, LF
Path
8. Set the RTSA cen
ter frequency to 2.1315 GHz. After averaging has
completed, press the Markers > Peak key and read the amplitude level of the
signal displayed at the center of the screen. Record this as TOI #2.
9. Calculate the Third Order Intermodulation Distortion (TOI) using the
following procedure. Record the results in the test record.
a. Record the maximum reading from step 7 or step 8.
b. Record the m
inimum reading from step 5 c or step 5 d.
c. Calculate the TOI using this equation:
TOI = step a – step b
1. Terminate the SPECMON analyzer RF Input with a 50 Ω terminator.
2. Reset the SPECMON analyzer to factory defaults: select Setup > Preset
(Main).
3. Select Tool s > Alignments and select Align Now.
4. Set the
Reference Level
Setup
Internal Attenuator
p > Amplitude > Internal Attenuator
Setu
RF & I
Setup > Amplitude > RF & IF Optimization
Center Frequency
Setup > Settings > Freq & Span > Center
Span
tup > Settings > Freq & span > Span
Se
RBW
tup > Settings > BW > RBW
Se
Detection
etup > Settings > Traces > Detection
S
Function
Setup > Settings > Traces > Function
Count
Setup > Settings > Traces > Function
LF Path
Setup > Acquire > Input Params
SPECMON analyzer:
> Amplitude > Ref Level
F Optimization
–50 dBm
Auto unchecked)
0dB(
Minimize Noise
z
9kH
1kHz
to (box checked)
Au
vg (of logs)
A
Avg (of logs)
100 ( Count box checked)
Use Low Freq... box checked
84SPECMON3 and SPECMON6 Technical Reference
Performance Verification
5. Set the markers
for Noise Mode operation:
a. Select Markers > Define Markers.
b. Select the Add soft key to add the Reference marker (MR).
c. Select Add againtoaddtheM1marker.
d. Select Absolute from the Readouts drop-down list.
e. Select Setup > Settings ,clickthePrefs tab, and then select the Marker
Noise Mode checkbox so it is checked.
6. Set the SPECMON analyzer to each of the Center Frequencies listed in the
following table by pressing the Freq key and entering the value listed.After
averaging is completed, press the Markers > Peak As noted below, if the
peak is on a spur, not the noise floor, place the marker on the highest point
of the noise fl oor.
NOTE. The intent of the DANL test is to measure the average internal noise level
of the instrument. The DANL specification does not cover residual spurs. If the
specific measurement frequency results in measuring a residual spur that is visible
above the noise level, the DANL specification applies not to the spur but to the
noise level on either side of the spur. Please refer to the Spurious Response
specifications. (See Table 16.). Also, refer to the Spurious Response section of this
procedure to determine whether or not a residual spur is within the specification.
(See page 93, Spurious Response.)
DANL – Preamp OFF, RF
Path
Table 65: Frequencies of interest for DANL (LF Path)
Center frequencyMarker noise levelFrequency range
4.1 kHz
9.9 kHz
10.1 kHz
31 MHz
4kHz-10kHz
10 kHz - 32 MHz
1. Reset the SPECMON analyzer to factory defaults: select Setup > Preset
(Main).
2. Select Tool s > Alignments and select Align Now.
b. Select the Add soft key to add the Reference marker (MR).
c. Select Add againtoaddtheM1marker.
d. Select Absolute from the Readouts drop-down list.
e. Sel
ect Setup >Settings, click the Prefs tab,andthenselecttheMarker
Noise Mode checkbox so it is checked.
5. Set
the SPECMON analyzer to each of the Center Frequencies listed in the
following table by pressing the Freq key and entering the value listed. After
averaging is completed, press the Markers > Peak key, for each Center
Frequency setting. As noted below, if the peak is on a spur, n ot the noise floor,
place the marker on the highest point of the noise floor.
Table 66: Frequencies of interest for DANL (RF Path)
Center frequencyMarker noise levelFrequency range
1.1 MHz
9.9 MHz
10 MHz
1.99 GHz
2.01 GHz
2.99 GHz
1 MHz — 10 MHz
10 MHz - 2.0 GHz
2.0 GHz - 3.0 GHz
86SPECMON3 and SPECMON6 Technical Reference
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